SMSL AD18 HiFi Audio Stereo Amplifier with Bluetooth 4.2 Supports Apt-X,USB DSP Full Digital Power Amplifier 2.1 for Speaker,Small 80Wx2 Class D Amplifier with Subwoofer Output

AD 18 is a small full digital class d bluetooth amplifier built-in headphone amplifier supports subwoofer output.Connect it for your computer and use it to drive your headphones with an amplifier or to power your passive speakers(4ohm speaker produces 80Wx2 output power).Sophisticated matting aluminum housing reduces interference. Patented SDB sound and +-8 level treble and bass adjustment. Independent headphone amplifier design and advanced DSP technology makes the unit more desirable.

Amplifier Chip: The use of TAS5508C for digital signal DSP processing and Pre-Amp.TAS5342A for digital signal rear-AMP. It is going to be through LC filter after which send to amplifier output jack.
Digital Receiving Chip:CS8422.It receive optical and coaxial signal and all signal transfer.
USB chip:TAS1020B. Supports stereo sound 24bit/96kHz.For significantly better sound, we use SDPI output as a substitute of internal DAC output design. Strong anti-interference ability and More High-Fidelity.
HP Amplifier Chip:MAX97220A. Dual-OP amplifier:NE5532 with High efficiency low noise.
Analog/Digital converter IC :CS5341,Accurate to 24 bit 48kHz.Convert AUX signal to digital signal. Then digital signal processing by CS8422

Specification
Type: Full digital decoding amplifier
Input port: USB/AUX/3.5mm Coaxial and Optical 1/Bluetooth/Optical 2
Output Port: Amplifier output port/3.5mm Headphone port/Subwoofer
Voltage: 24V
Output power:80W x 2
SNR(Signal to Noise): 90dB
THD+N: 0.04%
Output consumption: 50W
Standby power:0.8w
EQ adjustment: 7
Headphone output(32ohm): 53mW@THD=0.04%
USB sampling rate: 24bit 96kHz
Optical sampling rate:44.1kHz-192kHz
Coaxial sampling rate:44.1kHz-192kHz
Treble adjustment range: ±8db,Bass adjustment range:±8db
Net Weight: 572g
Gross Weight:1585g
Machine Size: 172*51*85mm

This class d amplifier supports USB coaxial analog bluetooth and two optical inputs
With amplifier output port,3.5mm headphone jack and subwoofer outputs, 80w*2 output power,1.44-inch color screen,the brightness of the display can also be adjusted
Custom designed BT4.2 Bluetooth Module,supports apt-x, easily connect to bluetooth by NFC
The bluetooth amplifier uses TAS5508C+TAS5342A from TI as amplifier chips, DSP technology, built-in SDB sound patented
What you get:SMSL AD18 amplifer,24v Power supply, MICRO USB cable,Remote keep an eye on,Antenna,1 year warranty and friendly customer service by *S.M.S.L Audio* official store